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A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
[Vascular malformations as syndromic markers]
A M Romero1, A Echebarría, L Sierrasesúmaga
1Departamento de Pediatría, Clínica Universitaria, Pamplona. amromero@unav.es
Insights
Vascular malformations are congenital, static vascular anomalies. This paper clarifies their classification and highlights syndromes where they signal other associated health conditions.
Area of Science:
- Vascular biology
- Developmental biology
- Medical genetics
Context:
- Vascular malformations are congenital anomalies present at birth, growing with the child.
- They represent errors in morphogenesis with no natural regression, persisting lifelong.
- Historical confusion in terminology was resolved by the International Society for the Study of Vascular Anomalies' 1996 classification.
Purpose:
- To clarify the classification of vascular malformations based on vessel type.
- To describe the clinical presentation of syndromes associated with vascular malformations.
- To aid in the early identification of syndromic complexes through recognition of vascular malformations.
Summary:
- Vascular malformations are classified as simple or complex based on the affected vessel type.
- These lesions can occur in isolation or as key indicators of broader syndromic conditions.
- This review details the signs and symptoms of syndromes where vascular malformations are a primary diagnostic clue.
Impact:
- Improved diagnostic accuracy for vascular malformations and associated syndromes.
- Facilitation of earlier recognition and management of complex syndromic conditions.
- Standardized classification aids communication and research in vascular anomalies.
Abstract:
Vascular malformations are static lesions, generally present at the moment of birth, formed by displasic vessels that grow in proportion to the growth of the child. They show normal cell replacements that constitute genuine mistakes of morphogenesis. The absence of regression of these malformations implies that they remain throughout the lifetime. The terminology describing this type of lesions gave rise to confusion in the medical literature until the International Society for the Study of Vascular Anomalies adopted a classification based on the dominant vessel of the malformation in 1996. This classification distinguishes between simple and complex forms depending on whether they affect one or several types of vessel. Vascular malformations can show themselves as isolated lesions or can be associated with other lesions, constituting the guide sign or being the principal marker of some syndromic complexes. This paper describes the principal signs and symptoms of those syndromes in which a vascular malformation is the key that raises suspicion about the existence of other associated lesions.
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